OHHHH WE ARE SOOO CLOSE TO HIM FINDING OUT HE IS HIS MATEEEE
Spoiler!
Based on the novel, the labyrinth is hidden with magic that can't let anyone detect anything, even dragons. Which is why his instinct pointed him to north all the time, because the MC left to the labyrinth through a portal immediately and his presence lastly detected at north.
he'll find that he is his mate when the MC uses and the same magic on a smaller scale and disappears from the drgaon radar, then the dragon realizes what happens
he'll find that he is his mate when the MC uses and the same magic on a smaller scale and disappears from the drgaon radar, then the dragon realizes what happens